Location and device empty after reinstall

So app was glitchy but was able to setup 5 devices. Was not getting notifications even though i checked setting in app and iOS 14.3. I also shared the location to relative. The other phone somehow took account over. I deleted location on other device and reinstalled app. Now my phones app has no location and I can’t add the devices, says already has owner Jesus so now I can’t do anything. What junky app and service please help this is so fussy